Five year outcome
A study by senior researchers compared CCI to microfracture, and found that after five years the results were better than microfracture, but in the early stages the results were directly comparabe.
Characterised Chondrocyte Implantation (CCI) is a procedure to grow cartilage cells (chondrocytes), seed them onto a collagen membrane, and sew that membrane back onto the knee to cover a cartilage lesion.
A study by senior researchers compared CCI to microfracture, and found that after five years the results were better than microfracture, but in the early stages the results were directly comparabe.